Operation

The DPC3500’s sensor is manufactured from a ceramic tile that is plated and vapor-deposited to form a surface that varies its electrical capacitance when exposed to small changes in water vapor pressure.  This information, along with temperature readings from the tip of the sensor, is used by the microprocessor to determine dew point.

 

The dew point of the gas in the sample line is displayed on the front panel.  A switch to the right of the display toggles between showing the readings in degrees Fahrenheit and degrees Celsius.  An indicator light to the right of the display will indicate the display’s operating mode.